Because this is the only part of the forum that signature campaign managers allow spamming with terrible English. It requires pretty much minimal English ability to respond here, and as everybody knows, this is the home of signature campaign spammers. Honestly, it's not worth posting here even if you have an honest opinion about something, because the spammers will drown you out in a few minutes.
Says the guy with the Rollin signature. ^smile^ For your information,
most other forums on anything else, has the highest posts in the "general area" dedicated to open & free discussion on the topic. So it would just be logical that you will have a higher concentration of threads in that section of the forum.
The Signature campaign managers will obviously target that area, because they will get the highest exposure for the product or service they are advertising. Just ask the forum owners to provide you with a report, to show where the most activity is on any forum, and you will find that it would be in the general discussion area. ^smile^
I hosted many forums before, and all of these advertisers ask the same questions. < Maximum exposure >